METHOD AND APPARATUS FOR PRODUCTION OF PRECIPITATED CALCIUM CARBONATE AND SILICATE COMPOUNDS IN COMMON PROCESS EQUIPMENT

摘要

A method and apparatus for the production of calcium carbonate and calcium silicate in common superatmospheric reactors. Multiple reactors can be provided for switching production between reactors, and advantageously utilizing process waste heat. On site production of both PCC and Calcium Silicate Hydrates is thus achieved in a paper mill.